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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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meganladner25 meganladner25
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6 years ago
A scan shows that a particular substance has spread throughout the body via the bloodstream but has not entered the brain. This finding demonstrates the existence of
 
  a. the blood-brain barrier.
  b. blood efficacy.
  c. medicine effects.
  d. the lipid bilayer.
  e. the doctrine of specific nerve energies.
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IDJIDJ
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6 years ago
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meganladner25 Author
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6 years ago
Thanks for your help!!
jbarnett14
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Yesterday
Thank you, thank you, thank you!
jbag1237
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2 hours ago
This helped my grade so much Perfect
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